US4704731A - Packing inside bag for viscous material - Google Patents

Packing inside bag for viscous material Download PDF

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Publication number
US4704731A
US4704731A US06/828,396 US82839686A US4704731A US 4704731 A US4704731 A US 4704731A US 82839686 A US82839686 A US 82839686A US 4704731 A US4704731 A US 4704731A
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US
United States
Prior art keywords
wall
bag
edge
extending
folded
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US06/828,396
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English (en)
Inventor
Haruhisa Katase
Yasuo Rokushima
Tosio Yanagi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eneos Corp
Original Assignee
Nippon Petrochemicals Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by Nippon Petrochemicals Co Ltd filed Critical Nippon Petrochemicals Co Ltd
Assigned to NIPPON PETROCHEMICALS CO., LTD., A COMPANY OF JAPAN reassignment NIPPON PETROCHEMICALS CO., LTD., A COMPANY OF JAPAN ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: KATASE, HARUHISA, ROKUSHIMA, YASUO, YANAGI, TOSIO
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Publication of US4704731A publication Critical patent/US4704731A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/18—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding a single blank to U-shape to form the base of the container and opposite sides of the body portion, the remaining sides being formed primarily by extensions of one or more of these opposite sides, e.g. flaps hinged thereto
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/56—Linings or internal coatings, e.g. pre-formed trays provided with a blow- or thermoformed layer
    • B65D5/60—Loose, or loosely attached, linings

Definitions

  • the present invention relates to a packing inner bag designed to fit within an outer box and to receive and hold, in leak free and sealed fashion, a viscous semisolid material therein.
  • a viscous semisolid is usually heated in order to lower its viscosity to transform same into a fluid state.
  • the material is then packed into suitable containers or packages, so that articles of the semisolid are manufactured.
  • Containers and packages employed in the prior art for this purpose include metallic containers, corrugated cardboard boxes baked with a release agent which is charged directly with the semisolid material, corrugated cardboard boxes or cardboard tubes into which semisolid material units previously wrapped in release agent-baked films or papers are packed, and release agent-baked deep drawn plastic dishes.
  • the box is adequate to provide a sealing state perfect enough to prevent contamination with foreign matter, dispensing with the need for a cutter or the like for in opening the bag, the materials which are in the state of a semisolid when heated and which have a relatively low viscosity can easily be received therein, and a space volumetric efficiency is excellent.
  • the above mentioned object of the present invention can be achieved by providing a packing inner bag for a viscous material having an opened upper end portion which is constructed by folding one blank laminated sheet having a thickness of 50 to 300 ⁇ m and comprising a polyethylene terephthalate (hereinafter referred to as PET) film an inner surface thereof which is treated with silicone and a glassine paper or a semiglassine paper.
  • PET polyethylene terephthalate
  • the bag is dimensioned to fit in an outside box.
  • FIG. 1 is an expansion plan of a packing inner bag for a viscous material according to the present invention.
  • FIGS. 2 and 3 are partial perspective views illustrating intermediate assembly states of the bag.
  • a glassine paper used in the present invention can be optionally selected from commercially available articles, having standard weights of 25 to 30 g/m 2 , which are free of pinholes, and which have good properties. Additionally, commercial semiglassine papers having a lower transparency may also be employed. Both the glassine and semiglassine papers have high heat resistivities, so that they will scarcely deteriorate even when heated during packing of hot contents therein.
  • a release agent baking treatment of applying silicone onto sheets can be carried out in accordance with a known optional procedure such as a release agent baking treatment on the surface of the sheet by a thermal crosslinking after the application of a commercially available siloxane prepolymer.
  • a thickness of the prepolymer membrane may not be always uniform, but it is important that only a uniform coating of the prepolymer is applied.
  • a laminated film consisting of the above mentioned PET film and glassine paper or semiglassine paper is one of preferable embodiments of the sheet for constituting the bag of the present invention, but other sheets can be used, so long as they are foldable and flexible enough the purposes of the present invention, and so long as their inner surfaces have the above-mentioned release properties.
  • These sheets include a polyethylene fluoride resin such as Teflon (trade name) and ultra-high-molecular-weight polyethylene sheets, and in the cases of such sheets, the specific release agent baking treatment is unnecessary.
  • FIG. 1 shows an unfolded sheet from which a packing inner bag for a viscous material according to the present invention is formed.
  • FIGS. 2 and 3 provide partial perspective views illustrating intermediate assembly states of the bag.
  • a bottom surface 1 having a rectangular shape is connected to a front wall 3 and a rear wall 3a along folds 2, 2a.
  • the front wall 3 is provided, on the opposite side edges thereof, with said walls 8, 9 via folds 6, 7, and the rear wall 3a is likewise provided, on the opposite side edges thereof, with side walls 8a, 9a via folds 6a, 7a.
  • first lug flaps 12, 13 and 12a, 13a are provided along outer edges of the side walls 8, 9 and 8a, 9a via folds 10, 11 and 10a, 11a.
  • Flaps C, C" extending from flaps 12, 13 are provided along upper edges of flaps 12, 13 via folds 18, 19, and in like manner, flaps C', C'" extend from flaps 12a, 13a and are provided along lower edges of folds 12a, 13a via folds 18a, 19a.
  • a first lug A (see FIG. 2) is formed by associating the portion consisting of the first lug flap 13 and the flap C" with the other portion consisting of the first lug flap 13a and the flap C'" along a fold 15, with their inner surfaces faced to each other, and another first lug A' (see FIG. 3) is likewise formed by associating the portion consisting of the first lug flap 12 and the flap C with the other portion consisting of the first lug flap 12a and the flap C' along a fold 14, with their inner surfaces faced to each other. Therefore, the four first lug flaps and the four flaps just described have the same size and the same rectangular shape.
  • Fold flaps a, a', b, b', b" and b'" having a top angle of 90° and oblique sides of folds are provided along the opposite side edges of the bottom surface 1 via the folds 4, 5, and other folds 14, 15 are formed so as to extend horizontally from the top points 24, 25.
  • a length of the folds 14, 15 is not limited in particular, but at least about 5 cm is necessary from the viewpoints of the prevention of the cold flow of contents through a crevice of the lugs A, A' and the easiness of a receipt of the inside bag having the lugs into an outside box. More preferably, the length of the folds 14, 15 is half of a length of the side wall plus the lug flap in a horizontal direction in FIG. 1.
  • the front wall 3 and the rear wall 3a are uprightly raised along the folds 2, 2a on the upper and lower sides of the bottom surface 1 in FIG. 1 in order to construct the front wall and the rear wall.
  • the first lug flaps 12, 12a, 13, 13a and the flaps C, C', C", C'" are simultaneously raised, and by the use of these sections, the first lugs A and A' are constructed.
  • the first lug A (FIG. 2) is formed by associating the portion consisting of the first lug flap 13 and the flap C" with the other portion consisting of the first lug flap 13a and the flap C'" along a fold 15, with their inner surfaces facing one another, and the other first lug A' (FIG.
  • first lug flap 12 is, in like manner, formed by associating the portion consisting of the first lug flap 12 and the flap C with the other portion consisting of the first lug flap 12a and the flap C' along a fold 14, with their inner surfaces facing one another.
  • the thus formed first lugs A, A' are fixed on the side edges thereof by a heat resistant adhesive tape or the like, if necessary.
  • the bag (FIGS. 2 and 3) can be prepared which has an opened upper end portion and a shape adapted to just fit inside an outer box (not shown).
  • the fold flaps B", b'" are folded inward along oblique folds 17, 17a via the folds 7, 11 and 7a, 11a so that the folds 21, 21a may be put on the base 5 of the flap a', in order to form side wall 9, 9a (FIG. 2) of the inside bag.
  • the fold flaps b", b'" are put on the inner surface of the flap a', so that a new triangle portion D (FIG. 2) is formed.
  • a new triange portion D' (FIG. 3) is formed.
  • the first lug A' is then folded along the folds 10, 10a, 22, 22a so as to join face to face with either of the side walls 8 and 8a.
  • the flaps C, C' constituting the substantial extensions of the first lug A' are put on a part of the triangle portion D' in order to form a second lug B' (FIG. 3) having an irregular quadrilateral.
  • another second lug B (not shown) is formed which extends outward in parallel with the bottom surface via the fold 5.
  • each of the second lugs B, B' is folded so as to join face to face with each side wall or the bottom surface connected thereto.
  • the inner bag After having been received in the outside box, the inner bag is then charged with a suitably heated and therefore fluidized semisolid viscous material, and the upper portions alone of the side walls 8, 8a are then folded inward along the upper portions of the folds 10, 10a (FIG. 3) and the upper portions of the front wall and the rear wall are joined face to face with each other. Afterward, the joined portions are fixed by the use of an adhesive tape or like so as to airtightly seal the inner bag.
  • the outside box preferably has an upper lid and is rectangular.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Cartons (AREA)
  • Bag Frames (AREA)
  • Laminated Bodies (AREA)
US06/828,396 1985-02-15 1986-02-11 Packing inside bag for viscous material Expired - Lifetime US4704731A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP60-20282[U] 1985-02-15
JP1985020282U JPS61137564U (et) 1985-02-15 1985-02-15

Publications (1)

Publication Number Publication Date
US4704731A true US4704731A (en) 1987-11-03

Family

ID=12022811

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/828,396 Expired - Lifetime US4704731A (en) 1985-02-15 1986-02-11 Packing inside bag for viscous material

Country Status (6)

Country Link
US (1) US4704731A (et)
EP (1) EP0191499B1 (et)
JP (1) JPS61137564U (et)
CN (1) CN1005908B (et)
CA (1) CA1263616A (et)
DE (1) DE3685129D1 (et)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5421485A (en) * 1992-12-01 1995-06-06 Daiwa Gravure Co., Ltd. Liquid dispensing utensil and bags for use with the utensil
US5820268A (en) * 1996-07-30 1998-10-13 Jotan, Inc. Insulated container for packaging perishable goods
US6443309B1 (en) * 2000-05-15 2002-09-03 Victory Packaging, Inc. Apparatus for packaging goods
US7140773B2 (en) 1996-07-30 2006-11-28 Frontier Paper & Packaging, Inc. Method and apparatus for packaging perishable goods
US20120141640A1 (en) * 2010-12-02 2012-06-07 Ron Anderson Combination bread baking and packaging apparatus
US20130071049A1 (en) * 2011-09-15 2013-03-21 Cofresco Frischhalteprodukte Gmbh & Co. Kg Bag for storing and preparing food
US10322851B2 (en) * 2016-12-14 2019-06-18 Ah Moi TAN Self-supporting plastic bag and method for manufacturing same

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7203553B2 (ja) * 2018-10-01 2023-01-13 株式会社細川洋行 角底包装袋、包装体、および角底包装袋の製造方法
EP4005942A1 (en) * 2020-11-25 2022-06-01 Stora Enso Oyj A blank configured to be folded into an envelope

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2092858A (en) * 1934-03-12 1937-09-14 Johnson Automatic Sealer Co Lt Bag and method of making same
US2169638A (en) * 1938-01-05 1939-08-15 Shellmar Products Co Container
US2392206A (en) * 1940-05-25 1946-01-01 Harry F Waters Method of making fluid-tight bags
US2406791A (en) * 1943-01-15 1946-09-03 Bemis Bro Bag Co Method of closing bag tube ends
US3041941A (en) * 1957-07-25 1962-07-03 Habra Werk Ott Kg Manufacture of containers or the like
US3144188A (en) * 1962-08-22 1964-08-11 Waldorf Paper Prod Co Reinforcing pad for container liner
US3317117A (en) * 1965-03-19 1967-05-02 Bemis Co Inc Bag
US3822037A (en) * 1972-02-14 1974-07-02 Dalpak Corp Compactor bag and method of manufacture
US4082216A (en) * 1977-02-07 1978-04-04 Eli Lilly And Company Carton and bag container
US4189089A (en) * 1978-05-30 1980-02-19 H. J. Langen & Sons Ltd. Bag having sides seamed by complementary bands of cohesive material
US4428499A (en) * 1982-05-10 1984-01-31 Container Corporation Of America Sift proof liner for outer container

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2048122A (en) * 1934-08-03 1936-07-21 Pneumatic Scale Corp Paraffin bag
FR1257588A (fr) * 1960-05-27 1961-03-31 Pneumatic Scale Corp Paquetage, tel que boîte en carton à doublure étanche

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2092858A (en) * 1934-03-12 1937-09-14 Johnson Automatic Sealer Co Lt Bag and method of making same
US2169638A (en) * 1938-01-05 1939-08-15 Shellmar Products Co Container
US2392206A (en) * 1940-05-25 1946-01-01 Harry F Waters Method of making fluid-tight bags
US2406791A (en) * 1943-01-15 1946-09-03 Bemis Bro Bag Co Method of closing bag tube ends
US3041941A (en) * 1957-07-25 1962-07-03 Habra Werk Ott Kg Manufacture of containers or the like
US3144188A (en) * 1962-08-22 1964-08-11 Waldorf Paper Prod Co Reinforcing pad for container liner
US3317117A (en) * 1965-03-19 1967-05-02 Bemis Co Inc Bag
US3822037A (en) * 1972-02-14 1974-07-02 Dalpak Corp Compactor bag and method of manufacture
US4082216A (en) * 1977-02-07 1978-04-04 Eli Lilly And Company Carton and bag container
US4189089A (en) * 1978-05-30 1980-02-19 H. J. Langen & Sons Ltd. Bag having sides seamed by complementary bands of cohesive material
US4428499A (en) * 1982-05-10 1984-01-31 Container Corporation Of America Sift proof liner for outer container

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5421485A (en) * 1992-12-01 1995-06-06 Daiwa Gravure Co., Ltd. Liquid dispensing utensil and bags for use with the utensil
US5820268A (en) * 1996-07-30 1998-10-13 Jotan, Inc. Insulated container for packaging perishable goods
US6007467A (en) * 1996-07-30 1999-12-28 Eastern Seaboard Packaging, Inc. Method for forming an insulating inner container
US6080096A (en) * 1996-07-30 2000-06-27 Becker; John W. Method for packing perishable goods
US7140773B2 (en) 1996-07-30 2006-11-28 Frontier Paper & Packaging, Inc. Method and apparatus for packaging perishable goods
US6443309B1 (en) * 2000-05-15 2002-09-03 Victory Packaging, Inc. Apparatus for packaging goods
US20120141640A1 (en) * 2010-12-02 2012-06-07 Ron Anderson Combination bread baking and packaging apparatus
US20130071049A1 (en) * 2011-09-15 2013-03-21 Cofresco Frischhalteprodukte Gmbh & Co. Kg Bag for storing and preparing food
US10099832B2 (en) * 2011-09-15 2018-10-16 Cofresco Frischhalteprodukte Gmbh & Co. Kg Bag for storing and preparing food
US10322851B2 (en) * 2016-12-14 2019-06-18 Ah Moi TAN Self-supporting plastic bag and method for manufacturing same

Also Published As

Publication number Publication date
EP0191499B1 (en) 1992-05-06
EP0191499A3 (en) 1987-12-09
CN1005908B (zh) 1989-11-29
EP0191499A2 (en) 1986-08-20
CA1263616A (en) 1989-12-05
CN86101139A (zh) 1986-11-19
DE3685129D1 (de) 1992-06-11
JPS61137564U (et) 1986-08-26

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AS Assignment

Owner name: NIPPON PETROCHEMICALS CO., LTD., 1-3-1, UCHISAIWAI

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:KATASE, HARUHISA;ROKUSHIMA, YASUO;YANAGI, TOSIO;REEL/FRAME:004517/0094

Effective date: 19860205

Owner name: NIPPON PETROCHEMICALS CO., LTD., A COMPANY OF JAPA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KATASE, HARUHISA;ROKUSHIMA, YASUO;YANAGI, TOSIO;REEL/FRAME:004517/0094

Effective date: 19860205

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